Home / 320,394.20-442,136.16-177,150.56

Finding the Fourth Proportional to 320,394.20, 442,136.16 and 177,150.56

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Solution

The fourth proportional to 320,394.20, 442,136.16 and 177,150.56 is: 244,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,394.20 : 442,136.16 = 177,150.56 : x
  2. Step 2: Convert to fraction form
    320,394.20/442,136.16 = 177,150.56/x
  3. Step 3: Cross multiply
    320,394.20x = 442,136.16 × 177,150.56
  4. Step 4: Simplify right side
    320,394.20x = 78,324,668,340.25
  5. Step 5: Solve for x
    x = 78,324,668,340.25/320,394.20
  6. Step 6: Final answer
    x = 244,463.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.